Patents by Inventor Tapio Kallio

Tapio Kallio has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Bolt-like fixing assembly for reinforcing rock structure
    Patent number: 4444529
    Abstract: A bolt-like fixing assembly for use in improving the strength and/or stability characteristics of rock structure, such as for reinforcing rocks, includes an elongate structure one end of which is adapted to be fixed within a bore formed in a rock and a device for fixing the other end of the elongate structure to the surface of the rock. According to aspects of the invention, the elongate structure is constituted of at least two rod-like members and a fixing device of the elongate structure is constituted by a wedge-shaped member and a bearing plate, such as a washer. The elongate structure is preferably constituted of three rod-like members, each of which preferably is constituted of a bulb steel rod.
    Type: Grant
    Filed: April 20, 1982
    Date of Patent: April 24, 1984
    Assignee: Neste Oy
    Inventors: Tapio Kallio, Tauno Korhonen, Veikko Leiviska, Jorma Pulkkinen, Kalevi Salo